gcc/testsuite/gcc.dg/torture/pr40470-3.c

   1 /* { dg-do compile { target i?86-*-* x86_64-*-* } } */
   2 /* { dg-options "-msse4" } */
   3 #include <nmmintrin.h>
   4 __m128i load (char *);
   5 char *
   6 foo (char *p1, char *p2,
   7      int bmsk, __m128i mask1, __m128i mask2)
   8 {
   9   int len = 0;
  10   __m128i frag1, frag2;
  11   int  cmp_s;
  12   if( !p2[0]) return p1;
  13   if( !p1[0] ) return NULL;
  14   frag2 = load (p2);
  15   frag1 = load (p1);
  16   frag2 = _mm_blendv_epi8(frag2, mask2, mask1);
  17   frag1 = _mm_blendv_epi8(frag1, mask1, mask2);
  18   cmp_s = _mm_cmpistrs(frag2, frag1, 0x0c);
  19   if( cmp_s )
  20     __asm("bsfl %[bmsk], %[len]" : [len] "=r" (len) : [bmsk] "r" (bmsk) );
  21   return p1 + len;
  22 }